<!-- 复合属性 -->

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>复合属性</title>
    <style>
        div {
            width: 400px;
            height: 400px;
            background: slategray url(../../Pictures/Desk2.jpg) no-repeat center bottom/cover;
        }
    </style>
</head>
<body>
    <div>复合属性</div>
</body>
</html>